var whitespace = " \t\n\r";
var intG = 0;


function charInString (c, s)
{   for (i = 0; i < s.length; i++)
    {   if (s.charAt(i) == c) return true;
    }
    return false
}

function startAll()
{    intG = 0;
}


function stripCharsInBag (s, bag)
{   var i;
 var returnString = "";

    // Search through string chars one by one.
    // If character is not in bag, append to returnString.

    for (i = 0; i < s.length; i++)
    {    // Check that current character isn not whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }

    return returnString;
}


function ltrimInput(s)

{   var i = 0;
 var whitespace = " ";

    while ((i < s.length) && (s.charAt(i) == whitespace))
       i++;

    return s.substring (i, s.length);
}


function checkEmpty(qtext,qorder,qmust)
{    var strText;

 strText = eval("document.FormBuilder.QUESTION_" + qorder + ".value");
 if (strText == null || strText == "")
 {   if(qmust == 1)
     {   alert("\"" + qtext + "\"  is a required field.");
         return false;
     }
     else{   intG++; return true;    }

 }
 else    //there is an input just left trim it and give a proper msg to user if nec.
 {   strText = ltrimInput(strText);
     if (strText == null || strText == "")
     {   alert("Please properly answer question\n" + "\"" + qtext + "\"");
         return false;
     }
     else{   return true;}
 }
}


function checkEmailPattern(strText)
{

 var regEx = /^([^\s@]+)@{1}([A-Za-z0-9\-\.]+)\.{1}([A-Za-z]+)$/;
 
 return regEx.test(strText);

}

function checkContactInfo(qorder,qmust)
{
 strName = eval("document.FormBuilder.QUESTION_" + qorder + "_NAME.value");
 strName = ltrimInput(strName);
 strEmail = eval("document.FormBuilder.QUESTION_" + qorder + "_EMAIL.value");
 strAddress = eval("document.FormBuilder.QUESTION_" + qorder + "_ADDRESS.value");
 strAddress = ltrimInput(strAddress);
 intPhone = eval("document.FormBuilder.QUESTION_" + qorder + "_PHONE.value");
 intPhone = ltrimInput(intPhone);
 intFax = eval("document.FormBuilder.QUESTION_" + qorder + "_FAX.value");
 intFax = ltrimInput(intFax);
 strTitle = eval("document.FormBuilder.QUESTION_" + qorder + "_TITLE.value");
 strTitle = ltrimInput(strTitle);
 strCompany = eval("document.FormBuilder.QUESTION_" + qorder + "_COMPANY.value");
 strCompany = ltrimInput(strCompany);

 // check if any the fields are null or empty
 if ((strName == null || strName == "") || (strEmail == null || strEmail == "") ||
     (strAddress == null || strAddress == "") || (intPhone == null || intPhone == "") ||
     (intFax == null || intFax == "") || (strTitle == null || strTitle == "") ||
     (strCompany == null || strCompany == ""))
 {   if(qmust == 1)
     {   alert("\"Contact information (Name, Address, ...)\"  are all required fields.");
         return false;
     }
     else
     {
         if ((strName == null || strName == "") && (strEmail == null || strEmail == "") &&
             (strAddress == null || strAddress == "") && (intPhone == null || intPhone == "") &&
             (intFax == null || intFax == "") && (strTitle == null || strTitle == "") &&
             (strCompany == null || strCompany == ""))
         {   intG++; return true;    }
         else    // some empty, some not
         {
             // check whether email field is valid or not if it is not null or empty
     if (strEmail != "")
         {
             if (checkEmailPattern(strEmail))
             {
                 return true;
             }
             else
             {
                 alert("Please enter a valid e-mail address.");
                 return false;
             }

         }
         else { return true; }

         }
     }
 }
 else        // none of the fields is null or empty
 {
     if (checkEmailPattern(strEmail))
     {
         return true;
 }
 else
 {
     alert("Please enter a valid e-mail address.");
     return false;
 }
 }
}


function checkCountry(qorder,qmust)
{    var strCity;
 var strState;
 var strZip;
 var strCountry;

 strCity = eval("document.FormBuilder.QUESTION_" + qorder + "_CITY.value");
 strCity = ltrimInput(strCity);
 strState = eval("document.FormBuilder.QUESTION_" + qorder + "_STATE.value");
 strState = ltrimInput(strState);
 strZip = eval("document.FormBuilder.QUESTION_" + qorder + "_ZIP.value");
 strZip = ltrimInput(strZip);
 strCountry = eval("document.FormBuilder.QUESTION_" + qorder + "_COUNTRY.value");
 strCountry = ltrimInput(strCountry);
 if ((strCity == null || strCity == "") || (strState == null || strState == "") || (strZip == null || strZip == "") || (strCountry == null || strCountry == ""))
 {   if(qmust == 1)
     {   alert("Questions:  \"City, State, Zip, Country\"  are required." + "\nPlease fill in the questions.");
         return false;
     }
     else
     {   if ((strCity == null || strCity == "") && (strState == null || strState == "") && (strZip == null || strZip == "") && (strCountry == null || strCountry == ""))
         {   intG++; return true;    }
         else{   return true;    }
     }
 }
 else{   return true;    }
}


function checkNumber(qtext,qorder,intlow,inthigh,qmust,valmsg)
{    var intVal;
 var intYes;
 var strMsgWithRange = "\nPlease enter a number between " + intlow + " and " + inthigh + ".";
 var strMsgNoRage = "\nPlease enter a number.";
 var strMsg = "";

 if (parseFloat(intlow) == parseFloat(inthigh))
 {   strMsg = strMsgNoRage;
 }
 else
 {   strMsg = strMsgWithRange;
 }

 intVal = eval("document.FormBuilder.QUESTION_" + qorder + ".value");

 if (intVal == null || intVal == "")
 {   if(qmust == 1)
     {   if(valmsg == "" || valmsg == null)
         {   alert("\"" + qtext + "\"  is required." + strMsg);   }
         else
         {   alert(valmsg)   }
         return false;
     }
     else{   intG++; return true; }
 }
 else        //box is not empty
 {   intVal = ltrimInput(intVal);
     if (intVal == null || intVal == "")
     {   if(valmsg == "" || valmsg == null)
         {   alert("Please properly answer question\n" + "\"" + qtext + "\""); }
         else
         {   alert(valmsg)   }
         return false;
     }
     else
     {   parseInt(intVal);
         if(isNaN(intVal))                       //box is not empty and entry is not a number
         {   if(intlow != inthigh)
             {   if(valmsg == "" || valmsg == null)
                 {   alert("Please enter a number between " + intlow + " and " + inthigh + " in question\n\"" + qtext + "\""); }
                 else
                 {   alert(valmsg)   }
             }
             else
             {   if(valmsg == "" || valmsg == null)
                 {   alert("Please enter a number in question\n\"" + qtext + "\"");    }
                 else
                 {   alert(valmsg)   }
             }
             return false;
         }
         else                                                    //box has a number
         {   if(intlow <= inthigh)
             {   if(intlow == 0 && inthigh == 0)                 //any number is good
                 {   return true;
                 }
                 else
                 {
                     if ((intVal < intlow) || (intVal > inthigh))        //number is out of range.
                     {   if(valmsg == "" || valmsg == null)
                         {   alert("\"" + qtext + "\"  must have an answer between " + intlow + " and " + inthigh +
                             "\nPlease answer properly.");    }
                         else
                         {   alert(valmsg)   }
                         return false;
                     }
                     else{   return true;    }
                 }
             }
             else{   return true;    }
         }
     }
 }
}

function checkEmail(qtext,qorder,qmust)
{

 var strText = eval("document.FormBuilder.QUESTION_" + qorder + ".value");

 if ( (strText == null || strText == "") && (qmust == 1) )
 {
     alert("\"" + qtext + "\"  is required." + "\nPlease enter your e-mail address.");
     return false;
 }
 else if ( (strText == null || strText == "") && (qmust == 0) )
 {
     intG++;
     return true;
 }
 else if (!checkEmailPattern(strText))
 {
     alert("\"" + qtext + "\"  is required." + "\nPlease enter a valid e-mail address.");
     return false;
 }
 else
 {
     return (true);
 }

}
function checkDate(qtext,qorder,dtmlow,dtmhigh,dtmMlow,dtmMhigh,dtmDlow,dtmDhigh,dtmYlow,dtmYhigh,qmust,valmsg)
{    var regEx;
 var dtmVal;
 var strMsg1 = "\"" + qtext + "\" must have an answer between " + dtmlow + " and " + dtmhigh + ".";
 var strMsg2 = "\"" + qtext + "\"  is required." + "\nPlease enter a date between " + dtmlow + " and " + dtmhigh + "."

 dtmVal = eval("document.FormBuilder.QUESTION_" + qorder + ".value");
 //alert("dtmVal is: " + dtmVal);
 if (dtmVal == null || dtmVal == "")
 {   if(qmust == 1)
     {   if(dtmlow != dtmhigh)
         {   if(valmsg == "" | valmsg == null)
             {   alert(strMsg2); }
             else
             {   alert(valmsg)   }
         }
         else
         {   if(valmsg == "" | valmsg == null)
             {   alert("\"" + qtext + "\"  is required." + "\nPlease enter a date.")   }
             else
             {   alert(valmsg)   }
         }
         return false;
     }
     else{   intG++; return true;    }
 }
 else
 {   dtmVal = ltrimInput(dtmVal);
     if (dtmVal == null || dtmVal == "")       //box had only spaces
     {   if(dtmlow != dtmhigh)
         {   if(valmsg == "" | valmsg == null)
             {   alert(strMsg1); }
             else
             {   alert(valmsg)   }
         }
         else
         {   if(valmsg == "" | valmsg == null)
             {   alert("Please properly answer question\n" + "\"" + qtext + "\""); }
             else
             {   alert(valmsg)   }
         }
         return false;
     }
     else        //box is not empty
     {   regEx = /\b(1[0-2]|0?[1-9])[\-\/](0?[1-9]|[12][0-9]|3[01])[\-\/]((19|20)\d{2})/
         var arrDate = regEx.exec(dtmVal)
         if(arrDate)
         {   //alert("in if(arrDate)")
             var intMonth = arrDate[1]
             intMonth = parseInt(intMonth, 10)
             var intDay = arrDate[2]
             intDay = parseInt(intDay, 10)
             var intYear = arrDate[3]
             intYear = parseInt(intYear, 10)

             //alert("intmonth is: " + intMonth);
             //alert("intDay is: " + intDay);
             //alert("intYear is: " + intYear);

             var monthOk;
             monthOk = checkMonth(qtext,intYear,intMonth, intDay);
             if (monthOk == false){return false;}

             intMonth -= 1; dtmMlow -= 1; dtmMhigh -= 1;

             var dtmLow = new Date(dtmYlow,dtmMlow,dtmDlow)
             //alert("dtmlow is: " + dtmLow)
             var dtmHigh = new Date(dtmYhigh,dtmMhigh,dtmDhigh)
             //alert("dtmHigh is: " + dtmHigh)
             var dtmInput = new Date(intYear,intMonth,intDay)
             //alert("dtmInput is: " + dtmInput)

             if (dtmlow != dtmhigh)
             {   if(dtmLow<=dtmInput && dtmInput<=dtmHigh)
                 {   return true;    }
                 else
                 {   if(valmsg == "" | valmsg == null)
                     {   alert(strMsg1); }
                     else
                     {   alert(valmsg)   }
                     return false;
                 }
             }
             else{   return true;    }
         }
         else
         {   if(dtmlow != dtmhigh)
             {   if(valmsg == "" | valmsg == null)
                 {   alert(strMsg1); }
                 else
                 {   alert(valmsg)   }
             }
             else
             {   if(valmsg == "" | valmsg == null)
                 {   alert("Please enter a date in question:\n\"" + qtext + "\".")  }
                 else
                 {   alert(valmsg)   }
             }
             return false;
         }
     }
 }
}

function checkMonth(qtext,intyear,intmonth, intday)
{    var months = new Array("", "January", "February", "March", "April", "May", "June", "July", "August",
                     "September", "October", "November", "December");
 intmonth = parseInt(intmonth);
 intday = parseInt(intday);
 intyear = parseInt(intyear);

 if((intmonth == 4 || intmonth == 6 || intmonth == 9 || intmonth == 11) && intday > 30)
 {   alert(months[intmonth] + " has only 30 days. Please correct question:\n\"" + qtext + "\"" );
     return false;
 }
 else
 {   if(intday > 31)
     {   alert(months[intmonth] + " has only 31 days. Please correct question:\n\"" + qtext + "\"" );
         return false;
     }
 }

 if(intmonth == 2)
 {   if(intyear % 4 > 0 && intday > 28)
     {   alert("February of " + intyear + " has only 28 days. Please correct question:\n\"" + qtext + "\"" );
         return false;
     }
     else
     {   if(intday > 29)
         {   alert("February of " + intyear + " has only 29 days. Please correct question:\n\"" + qtext + "\"" );
             return false;
         }
     }
 }
 return true;
}

function checkMultiSelect(qtext,qorder,qmust)
{    var strVal;
 strVal = eval("document.FormBuilder.QUESTION_" + qorder);
 var strOption = strVal.options[strVal.selectedIndex].value;
 if(strOption == "" || strVal == null)
 {   if(qmust == 1)
     {   alert("\"" + qtext + "\"  is required." + "\nPlease select an option.");
         return false;
     }
     else{   intG++; return true;    }
 }
 else{   return true;    }
}

function checkMultiRadio(qtext,qorder,qmust)
{    var blnReturn = false;
 var intLen = eval("document.FormBuilder.QUESTION_" + qorder + ".length");
 parseInt(intLen);

 if (intLen == null){ intLen = 1 }                                    //in this case there will be no array

 for(var i=0; i<intLen; i++)
 {   if (intLen != 1)
     {    blnReturn = eval("document.FormBuilder.QUESTION_" + qorder + "[" + i + "].checked");
             if(blnReturn){  break;  }
     }
     else
     {       blnReturn = eval("document.FormBuilder.QUESTION_" + qorder + ".checked");
             if(blnReturn){  break;  }
     }
 }

 if(!blnReturn)
 {   if(qmust == 1)
     {   alert("\"" + qtext + "\"  is required." + "\nPlease select an option.");
         return false;
     }
     else{   intG++; return true;    }
 }
 else{   return true;    }
}


function checkMultiCheck(qtext,qorder,qnum,qmust)
{    var blnReturn = false;
 parseInt(qnum);

 for(var i=0; i < qnum; i++)
 {   blnReturn = eval("document.FormBuilder.QUESTION_" + qorder + "_" + i + ".checked");
     if(blnReturn){  break;  }
 }

 if(!blnReturn)
     {   if(qmust == 1)
         {   alert("\"" + qtext + "\"  is required." + "\nPlease select any option.");
             return false;
         }
         else{   intG++; return true;    }
     }
 else{   return true;    }
}